Boiler-cleaner



(No Model.) 7

J. DVEOR'A.

BOILER CLEANER. V No. 552,405. Patented 1155.51, 1895.

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AN DREW B GRAHAM. PHOTO-LITNQWA-SMINGTDNJ C NITED STATES PATENT OFFICE.

JOHN DVEORA, OF TOWER HILL, ILLINOIS.

BOILER-CLEANER.

SPECIFICATION forming part of Letters Patent No. 552,406, dated December31, 1895.

Application filed August 28, 1895.

T0 aZZ whom it may concern.-

Be it known that 1, JOHN DVEORA, a citizen of the United States,residing at Tower Hill, in the county of'Shelby, State of Illinois, haveinvented certain new and useful Improvements in Boiler- Cleaners; I andI do hereby declare the following to be afull, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

My invention relates to improvements in de vices for blowing off thesediment in boilers.

The invention will first be described in connection with theaccompanying drawin gs,and then particularly pointed out in the claims.

In the drawings, Figure 1 is a longitudinal central vertical section,partly in elevation, of a boiler provided with my improved device. Fig.2 is a detail front view, partly in section, of the same. Fig. 3 is adetail view.

Referring to the drawings, A is a boilershell which may be of any usualconstruction, in the bottom of which is placed a false bottom B,comprising two wings or deflectors b, and a centrally-arranged trough orconveyerbox I). In the latter is placed a spiral conveyer 0, providedwith a shaft 0, which is j ournaled at each end in boxes 0, fixed insidethe boiler-shell. On the conveyer-shaft c is fixed a bevel gear-wheelD,which meshes into a corresponding bevel gear-wheel D, secured on theend of the vertical shaft E, which projects through the bottom of theboiler-shell and is held by a bearing e, riveted to the boilcr-shell,thebearing havingapacking-ring e and a gland (2 the latter threaded ontothe bearing,whereby all leakage around the shaft is prevented.

On the shaft E is fixed a second bevel gearwheel D which meshes into acorresponding bevel gear-wheel D fixed on the shaft f, of a motor-wheelF, which is provided with suitable buckles or vanes f.

The vertical shaft E and the motor-shaft f are carried by a hanger Gattached to the under side of the boiler and provided with threebearings g g 9 the first two, g g, carrying the vertical shaft, thelatter bearing, g supporting one end of the motor-shaftfiwhose other endis held by a casing II, which is secured to the boiler-shell andsurrounds the motor, the vertical shaft, its attached gear- Serial No.560,745. (No model.)

wheel D and the gear-wheel D The casing H is provided with an outlet hand with an inlet-pipe h, having a valve b and serving to convey waterand steam from the boiler to the 1n otor-wheel, the said inlet-pipe alsoserving as a blow-off pipe for the boiler, and be ing arranged at oneend of the screw or conveyer and tangential to the motor-wheel.

In order to hold the vertical shaft E against longitudinal movement itis provided with collars i, as shown.

The operation of my device may be briefly described as follows: When itis desired to blow off the sediment from the boiler, the valve 71 isopened, whereupon the escaping water and steam strikes the buckets ofthe motor and rotates the same, thereby rotating the conveyer or screwthrough the medium of the gearing. The rotation of the screw draws thesediment which settles in the trough of the false bottom B toward theblow-off pipe h, where it is forced out, passing the motor-wheel andescaping with the mingled water and steam at the outlet h. Furthermore,the rotation of the screw agitates the water and washes loose thesediment on the deflectors or wings b, which is thereby carried to theconveyer-trough and fin ally forced out through the blow-off pipe. Bythis construction all the sediment is carried off from the boiler with aminimum waste of water.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is-

1. The combination, with a boiler, of a conveyer device located at thebottom of the boiler, a blow-off pipe located near one end of theconveyer, and a motor located beneath the blow-off pipe, said motorbeing arranged to be driven by the fluid escaping through the blow-off,and serving to drive the conveyer, substantially as and for the purposedescribed.

2. The combination,with a boiler, of a false bottom located in theboiler and having a trough portion, a conveyer located in the trough, ablow-off pipe at the end of the conveyer, a motor beneath the blow-offpipe and arranged to be driven by the fluid escaping through the pipe,and means for transmitting motion from the motor to the conveyer,substantially as and for the purpose described.

3. The combination,with a boiler, of a false bottom located in theboiler and having a trough portion and a deflector at each side of thetrough, a conveyer located in the trough, a blow-oif pipe at the end ofthe conveyer, a motor beneath the blow-01f pipe and arranged to bedriven by the fluid escaping through said pipe, and means fortransmitting motion from the motor to the conveyor, substantially asdescribed.

4. The combination, with a boiler, a conveyer located within the boilerand provided with a shaft, a pair of journal boxes secured within theboiler and supporting the conveyer shaft, a vertical shaft having oneend projecting into the boiler, a bearing provided with a packing devicethrough which the vertical shaft passes, means for transmitting motionfrom the vertical shaft to the conveyer shaft, a blow-oif pipe at theend of the conveyer, and a motor arranged to be driven by the fluidescaping from the blow-off pipe, and transmitting motion to the verticalshaft, substantially as and for the purpose described.

5. The combination, with a boiler, a conveyer located at the bottom ofthe boiler, a blow-01f pipe at the end of the conveyer, and a motorarranged beneath the blow-oil pipe and adapted to be driven by the fluidescaping therefrom, of a valve in the blow-off pipe, mechanism fortransmitting motion from the motor to the conveyor, and a casingsurrounding said mechanism and the motor, and provided with an outlet,all operatively arranged as and for the purpose described.

In testimony whereof I aflix my signature in presence of two witnesses.

JNO. DVEORA. \Vitnesses \V. S. AMLIN, ED. R. ALLEN.

